Plow



D. w. THOMAS 2,335,977

PLOW

f Filed Junees, 1945 Dec. 7, 1943.

.W.Z7/z07fza 9. 277 .JI 7 INVENTOR- Patented Dec. 7, 1943 UNITED STATESPATIEINT` GFFICE I Y 2,335,977 v f 1 PLOW 1 Daniel W. Thomas, Richmond,nia.

Application June 23,1943, seria`11vo.491,9s3 v l (crei- 12erVv 1` Y,

2 Claims.

This invention relates to plows and is designed more expecially as animprovement upon the structure disclosed in Patent 1,616,398, issued tome on February1,.1927.

In the structure disclosed in said patent a plurality of fastening meanshave been required for the purpose of holding together the point, thewear plate and the blade and these have fre- `quently loosened so as tonecessitate repair. Furthermore the parts have not been held together assecurely as desired.

An object of the present invention is to provide a means whereby asingle bolt can be employed for fastening together the point, plowshare,shearing Wing or blade and landside, another single bolt being all thatis required to hold these parts to the moldboard.

A further object is to provide the parts of a plow with means wherebythey can interlock so as thus to be held against separation unless themain fastening means or bolt is removed.

With the foregoing and other objects in view which will appear as thedescription proceeds, the

invention consists of certain novel details of construction andcombinations of parts hereinafter more fully described andh pointed outin the claims, it being understood that changes may be made in theconstruction and arrangement of parts without departing from the spiritof the invention as claimed.

In the accompanying drawing the preferred form of the invention has beenshown.

In said drawing Figure 1 is a top plan view of a portion of a plowshowing the present improvements combined therewith.

Figure 2 is a bottom plan View of the structure shown in Fig. 1.

Figure 3 is a section on line 3-3, Figure 1.

Figure 4 is a section on line 4 4, Figure 1.

Figure 5 is a section on line 5-5, Figure 1.

Figure 6 is a section on line 6--6, Figure 1.

Figure '7 is a section on line `I-I, Figure 1.

Referring to the figures by characters of reference, I designates aportion of a moldboard reenforced along its landside edge by a dependinglongitudinal rib 2 while extending into its upper surface from Vtheopposite edge is a socket 3 opening through the bottom of a recess 4formed in the moldboard and extending back to a shoulder B in themoldboard. A plowshare 1 having a y landside 8 is fitted snugly upon theupper side of the moldboard against shoulder 6 and a longitudinol flange9 is located along that side of the plowshare remote fromthe landside,this flange being interrupted at the socket 3 and also yterminating backfrom the forward end of the vplowshare. f A tongue I0 extends forwardlyfrom the' landsid and plowshare and removably seated against the edge IIof the plowshare and on the flange 9 is the inner or back edge portionof a cutting blade or wing I2. This blade has a tongue I3 extendinglaterally therefrom and adapted to be seated in the pocket 3 in themoldboard where it will be retained by the plowshare againstdisplacement laterally. An inturnedlip 3 on `the moldboard laps thetongue I3 and prevents displacementy outwardly in the direction of thelength of the tongue.

The forward end of the blade I2 is flush with the forward end of theplowshare as will be noted by referring to Fig. 1 and these two ends areadapted to project into and be straddled by a fork I4 projectingbackwardly from a point I5. The fork is formed of two oppositelydisposed ears having openings I6 therein and extending into the point atone side of the ears is a socket I'I proportioned to receive the tongueIll and fit snugly thereto. The point I5 has a wall or abutment I8 atone side of the socket I'I and between the ears constituting the fork I4and when the point is in position engaging the plowshare 1 and the bladeI2, said plowshare and the blade will have their forward ends abuttingagainst the wall so as to t snugly. This abutment wall I8 is extendedalong a line which-converges laterally towards the center line of thetongue I3, as will be obvious by referring for example to Figs. 1 and 2.Consequently if the tongue I3 is seated snugly inthe socket 3 and theabutment wall I8 is fitted snugly against the adjacent ends of theplowshare 1 and the blade I2, said blade and plowshare cannot beseparated because the walls of the socket 3 would not provide suicientclearance for the removal of the tongue I3.

The point is adapted to be held in snug engagement with tongue I0 andthe ends of the plowshare and blade by a bolt I3 inserted transverselythrough the openings I6 and through the plowshare. With these parts allheld together it becomes impossible to separate them unless the bolt isfirst removed. Thus the use of supplemental rivets, bolts or the like isobviated. A second bolt 20 is employed for fastening the plowshare ontothe moldboard, thus maintaining it snugly thereon and against stopshoulder 6. By removing this bolt 20, the plowshare and the partsconnected thereto can be instantly disconnected from the moldboard.These parts,

tongue extending forwardly from the plowshare,.

a point having a wall abutting against the forl ward ends of the bladeand plowshare and having 1 a socket for the reception of the tongue onthe plowshare, ears extending from the point and and means for attachingthe moldboard to the plowshare.

2. 'I'he combination with a moldboard, a plowshare fastened thereto, andflanges extending laterally from the plowshare, there being a recess inthe moldboard and under the plowshare intersecting the anges, of atongue extended forwardly from the plowshare, a blade supported by theflanges and abutting against the plowshare, said blade and plowsharehaving alined forward ends, a point having a fork straddling said endsof the blade and plowshare and having an abutment Wall extended along aline converging laterally toward the center line of the recess in themoldboard, there being a tongue extended laterally from the blade andseated snugly in the "recess, said tongue and the forward end of thecooperating to constitute a fork straddling 4the l front end portions ofthe blade and plOWshare,

blade cooperating with the walls of the recess andthe abutment wallrespectively to hold the blade against lateral separation from theplowshare when the point is tted against the blade land plowshare, meansfor securing the Apoint to the plowshare, and a forwardly extendedtongue on the plowshare removably seated in the point.

DANIEL W. THOMAS.

